Embroidery-stiletto.



B. GALLINEK. EMBROIDERY STILETTO. APPLICATION FILED 00T. 1.1, 1909.

95%154., Patented May 3, 1910.A

WEA/mf@ Ev. GALL /NE K- UNTER@ STATE@ PATENT @FFlitllEi BENNO GALLINEK, OF NEW YORK, N. Y.

EMBROIDERY-STILETTO.

To all whom 'it may concern:

Be it known that l, BENNO GALLINEK, a citizen of the United States, and a resident of the borough of Manhattan, county, city, and State of New York, have invented certain new and useful Improvements in lEmbroidery-Stilettos, as set forth in the following specification.

This invention relates broadly to the combination of a gage device with a blade having a piercing end adapted to be thrust to varying depthsl into the material to be operated upon. The depth of the thrust means the distance upwardly from the tip of the piercing end that the said piercing end is caused to enter below the surface of the material operated upon.

An object of this invention is to gage the depth of the thrust of such a blade in an improved manner by new and improved means.

More specifically this invention relates to embroidery stilettos and in this respect its object is to provide improved means for gaging the depth of the thrust of the stiletto blade.

To the above end the invention contemplates the provision of a gage device mounted upon the shank of the operating blade, said shank and gage device having relative screw engagement whereby a relative rotation will effect a relative longitudinal movement between same to adjust a forward stop portion of the gage device relatively to the fabric piercing end of the blade.

It is contemplated that the relative threaded engagement of the above parts may be accomplished in any approved manner.

In an approved embodiment of the invention the gage device comprises a rigid wire spiral having open convolutions between which a lateral projection from the shank of the blade projects into the spiral way there provided to cause a longitudinal advance of the gage upon its rotation relatively to the shank. The lateral projection from the shank may exist in any of many embodiments. It may be a pin seated in and laterally projecting from the shank; it may be one of a plurality of pins; it may be the ridge of a spiral thread encircling the shank; or it may be a portion of the shank located between adjacent convolutions of a spiral groove cut into the shank for the wire spiral to thread into. lt is also to be understood that the said projection need not extend between adjacent convolutions of the gage de- Speecaton of Letters Patent.

Application filed October 11, 1909.

Patented May 3, 19M).

serial No. 522,103.

vice across the entire diameter of the wire forming the convolutions. It is to be understood that the expression contemplates any formation of or upon the shank of the stiletto to cooperate with a spiral way in the gage whereby relative threaded engagement between the gage and the shank will be provided.

The invention further comprehends a provision of means for clamping the gage device in adjusted position relatively to the blade. In the embodiment shown this provisions is achieved by forming the said lateral projection in the form of a thumb screw threaded into the shank with its stem acting as a partial thread in coperation with the spiral way of the gage device and with its flat surface as a clamping shoulder to hold the gage device in adjusted position.

The above and further objects of the invention will be clear from the following specification, which should be read in connection with the accompanying drawings, which form part of this application, in which like numerals designate corresponding parts and in which,-

Figure l is a side elevation of the combined structure of the invention; Fig. 2 is a longitudinal section partly in side elevation of the same; Fig. 3 is a view corresponding to Fig. 2 but showing a modification; and Fig il is also a similar view showing another modilication in which lateral project-ions from the shank form a continuous spiral thread. Y

The stiletto of the invention comprises a shank 1 preferably cylindrical as shown and tapered at its forward end to provide a piercingl end 2 adapted to be thrust into the material to be operated upon. The tip of this piercing end is indicated by 8 and is shown as a sharp pointed end forming the apex or forward end of a conical blade embodying the piercing end 2.

A gage device L is shown encircling the shank l. It comprises a plurality of open wire convolutions vforming a spiral and providing between the convolutions the spiral way 6 into which one or more lateral projections from the shank l project. In Fig. 3 these projections are shown in the form of pins 7 suitably formed on or secured in the shank l. In Fig. 4 these rojections are shown as a spiral thread 7 between the convolutions of which thread the `spiral gage device 4 is threaded in an obvious manner. In Figs. l and 2 this lateral projection is shown in the form of the threaded stem 7 of a thumb screw 8, which stem is t-hreaded into the shank l with the head of the thumb screw serving as means to clamp the gage device in adjusted position relatively to the shank l, all in an obvious manner.

In all embodiments of the invention, the gage device a and the shank l have relative screw engagement, the lateral projections 7 and 7 being practically an incomplete or interrupted screw thread formed on the shank.

In all embodiments of the invention the gage device is shown provided with a flat stop portion 9 at its forward end for engaging the fabric to limit the depth of the thrust of the piercinO` end 2. This stop portion may be formedD so as to close the end convolutions and will also serve as a stop to limit the rearward movement of the gage device t by preventing the passage therethrough of the lateral projections 7 or 7 or 7. The rear end of the gage device shown in Figs. 1, 2 and 3 is also provided with a pair of closed convolutions l0 which limit the forward movement of the gage device in a similar manner. In Figs. l and 2 the parts are so relatively positioned and proportioned as to allow the forward movement of the stop portion 9 only to a point short of the tip 3 so that the tip 3 is always uncovered and projecting. This has many advantages in that a certain minimum dept-h of thrust is always required for the piercing end 2 and useless adjustment of the gage 4 is prevented in this manner. As shown in Fig. 3, however, the parts are so proportioned and positioned as to allow the stop portion 9 to pass beyond the tip 3 to act as a shield therefor. This has a certain advantage although occasioning a greater relative movement in adjusting the gage device.

The embodiment shown in Fig. 3 has no positive means for clamping the gage device relatively to the shank and the same is true of the embodiment in Fig. 4L. It has been found, however, that the spiral way 6 and the coperating lateral projections from the shank are very eflicient in holding the gage and shank frictionally in relative adjustment. Thus it is understood that provisions for positively clamping the parts in adjustment may be omitted with this type of gage. Furthermore it is to be noted that the shank l is shown knurled at its rear portion in Fig'. t which might likewise be the case with the other embodiments.

In an embroidery stiletto the depth of the thrust of the fabric piercing end is important to determine the diameter of the hole pierced in the fabric, which hole corresponds, as is well understood, with the cross section of the fabric piercing end at the locality up to which this end is thrust into the fabric. In connection with blades for other purposes than piercing' fabric, the depth of the thrust may itself be important regardless of the cross section or size of the opening made in the material operated upon.

It is to be understood that satisfactory embodiments of the invention have been shown and described merely for purposes of illustration and that what is claimed and desired to be secured by United States Letters Patent is embodied in the accompanying claims when read in connection with the foregoing' specification and the accompanying drawings.

I claiml. A blade having a piercing end adapted to be thrust into the material to be operated upon and also having a shank, all in combination with a gage device movably mounted on said shank and having a stop portion at one end to limit the depth of the thrust of said piercing end, said gage device having a spiral way and said shank having a late al projection extending into said spiral way, whereby a rotation of said gage device relatively to said shank will effect a longitudinal movelnent of said stop portion along' said piercing end to adjust its depth of thrust.

2. In an embroidery stiletto, a shank having a tapered fabric piercing end; a rigid gage device having a fabric engaging stop portion at one end and mounted on said shank, said gage device and shank having provisions for relative screw engagement whereby a relative manual rotation will adjust the position of said stop portion relatively to said fabric piercing end, the mounting of said gage device on said shank and the provisions for its relative screw engagement therewith being capable of preventing movement of said stop portion from its adj usted position during the fabric piercing operations of the stiletto.

3. In an embroidery stiletto, a shank having a tapered fabric piercing end; a gage device comprising a rigid wire spiral of open convolutions encircling and frictionally engaging' said shank and having a stop portion for said fabric piercing end; and a lateral projection from said shank extending between adjacent eonvolutions whereby a relative rotation of said shank and gage device will cause a relative longitudinal movement of the same, to adjust said stop portion along said tapered fabric piercing end and to maintain it in adjusted position when engaging fabric so as to limit t-he depth of thrust of said end.

fl. In an embroidery stiletto, a shank having a tapered fabric piercing' end; a gage device comprising a rigid wire spiral of open convolutions encircling said shank and having a stop portion at on'e end; and a lateral projection from said shank extending between adjacent convolutions whereby a relative rotation of said shank and gage device will cause a relative longitudinal movement of the same to adjust the position of said stop portion, said lateral projection having provisions for clamping said gage device in adjusted position.

5. In an embroidery stiletto, a shank having a tapered fabric piercing end; a rigid gage device comprising` a wire spiral of open convolutions mounted on said shank and having relative screw engagement therewith, said gage device having a stop portion adjustable along said fabric piercing end; and a clamping thumb screw having a stem passing between adjacent convolutions of said gage device and engaging the body of said shank whereby said gage device may be set in adjusted position by screwing said thumb screw home.

6. In an embroidery stiletto, a shank having a tapered fabric piercing end; a gage device comprising a wire spiral of open convolutions encircling said shank; and a lateral projection from said shank extending between adjacent convolutions whereby a relative rotation of said shank and gage device will cause a relative longitudinal movement of the same, said gage device having closed convolutions at each end and being arranged relatively to said lateral projection so as to limit the forward and rearward movements of said gage on said shank.

In witness whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

BENNO GALLINEK.

`Witnesses CHRISTINE E. I-IANSELMANN, LILLIE ALTMAN. 

